Look twice.Find the gem.

AI agents and MCP servers, each published with its source and what the checks found.

Marketplace

  • Everything
  • AI agents
  • Apps
  • MCP servers
  • Templates
  • What people want
  • What changed this week
  • The verification standard
  • The ooruby Index
  • Servers that publish no source
  • Reliability guides
  • What the catalogue holds
  • Sell here

Our library

  • Everything, in one place
  • Guides
  • Glossary
  • Calculators
  • Checklists and cheat sheets
  • Community

ooruby

  • Home
  • For teams
  • Site status
  • Company projects
  • RSS feed

Verification records what our published tests found on a specific version at a specific date. It is not a warranty, and it does not certify that software is free of defects.

AI agentsAppsMCP serversTemplatesWantedCommunityOur library
Sign inSell
Catalogue/MCP servers/Guardion

Guardion

guardion · MCP server

Guardion applies one policy to three areas of agent use. A local proxy in front of an MCP server redacts PII and secrets on tool input and output, restoring values on the way back, and checks calls for prompt injection and tool poisoning. Runtime hooks in Claude Code observe or block prompts and tool use, and a Shadow AI scanner inventories AI apps, agents, MCP servers, skills and plugins on a device and reports what changed. The policy is set in the Guardion console, and by default calls pass through if the Guardion API cannot be reached.

Written by ooruby from the README of @guardion/guardion 0.4.3.

Not claimed by its maker. Is this yours? Prove it and answer the findings

Why it's useful

Redacts secrets and personal data before the model sees them, and shows which AI tools are installed on a machine and what has changed.

What you could do with it

  1. 1Wrap one MCP server in the proxy so secrets and personal data reach the model only as placeholders.
  2. 2Install the Claude Code hooks to observe or block risky sessions and tools.
  3. 3Scan a device for installed AI apps, agents, MCP servers, skills and plugins and see what has changed.

Written from its documentation: what it says it can do, not what our checks found.

GUMCP serverInfrastructure

Maintenance

Not measured

No release date is on record for this package yet. The nightly publisher check records one as it reaches each npm package, about once every ten nights.

Release activity only: it says nothing about quality or safety, and a finished small package can be fine without releases. How it is measured

Not yet tested

What this does not cover

  • ·Everything. Treat it as you would software from anywhere else.

Receipt history: every signed receipt for every version of this listing, and what changed between them.

In its maker's words

Agent runtime governance — DLP for MCP servers, runtime guardrails for coding agents, and device-wide Shadow AI discovery

Compare with

  • Vps Guardian MCPside by side
  • Agentic Flowside by side
  • Ssh MCPside by side
Compare all 4

How far this has been checked

Static scanned

What it establishes
Its published package, or for a hosted server its source repository at a recorded commit, was read file by file, without running it, by every check in our current scan.
What it does not
How it behaves when it runs, or anything the scan does not read yet: several rubric checks, the repository's history, and compiled code in folders named dist or build. For a hosted server, that the endpoint runs the code that was read. The ooruby Index sets out exactly what was read.
Exactly what was read
Version 0.4.3, the file with digest sha512-OALArjS18BDIZvd1YP/M9B+VryTAERuKt0klgK4YvG8b/7e6t77SeVbPqbIPPlp3hwOvslMsF0HxjLM1xflhww==, as the registry publishes it. A published version cannot be replaced, so this names the same bytes for anyone who checks.
Authentication
Runs locally. No hosted endpoint is listed for this package. You run it on your own machine, so there is no endpoint of ours to authenticate against.
How the rungs work

Adding it

Paste this into your client's MCP configuration.

{
  "mcpServers": {
    "guardion": {
      "command": "npx",
      "args": [
        "-y",
        "@guardion/guardion@0.4.3"
      ]
    }
  }
}

Or run it directly.

npx -y @guardion/guardion@0.4.3

Pinned to 0.4.3, which is the version the findings above were found in. Drop the version to take whatever is newest, and the report on this page stops describing what you installed.

Where this came from

Registry
npm
Package
@guardion/guardion
Version read
0.4.3
Resolved
2026-10-10
Open the source(opens in a new tab)

No build provenance published. The repository above is the one the publisher declared, and nothing links it to the package you would install. That is not a mark against this listing, since most packages are published this way, but it is a check nobody can run.

The badge, if this is your listing

It renders the current rung (static scanned) and links back here, where what that does and does not establish is one click away. It updates itself as the evidence deepens.

[![ooruby: static scanned](https://ooruby.com/api/badge/guardion-guardion)](https://ooruby.com/market/guardion-guardion)

About this listing

Kind
MCP server
Category
Infrastructure
Pricing
Free
Sandbox
No
Hosted
No
Updated
2026-10-07
Price
Free
Get it freeVisit maker
Rating
no reviews yet
0 want this so far
Sign in to vote

Sign in to watch this listing and hear when its version, rung or findings change.

Similar MCP servers

All MCP servers
AZMCP serverInfrastructure
3 findingsStatic scanned
Covers Microsoft Foundry models and agents, Advisor recommendations, Speech, Resource Health, resource graph queries and ARM deployments, and can target sovereign clouds.

Azure MCP

azure
Free

Gives your agent tools across many Azure services, from Key Vault and App Service to AI Search.

544.8k installs/moMIT
ADMCP serverInfrastructure
1 findingStatic scanned
Each tool covers one Azure DevOps task over its REST APIs. You can load only the tool groups you need, such as work items, pipelines, repositories or wiki.

Azure Devops MCP

azure-devops
Free

Lets your agent work with Azure DevOps projects, work items, repos, builds, test plans and wikis.

389.8k installs/moMIT
HOMCP serverInfrastructure
4 findingsStatic scanned
Hostinger also runs a hosted MCP server that needs no local install, or you can run this one yourself over stdio or HTTP streaming. Sign-in uses OAuth, and the HTTP mode needs an API token.

Hostinger Api MCP

devs_hostinger
Free

Lets your agent query the Hostinger API for datacentres, domain name ideas and Reach plan features.

526.4k installs/moMIT

Verification records what our published tests found on a specific version at a specific date. It is not a warranty, and it does not certify that software is free of defects.